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Properties of a coincident-time curve

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Proceedings Papers

Paper presented at the ISRM International Symposium - EUROCK 93, June 21–24, 1993
Paper Number: ISRM-EUROCK-1993-032
... testing results. 4 CONCLUSION Jointed rockmasses will present obvious dilatancy phenomenon before failure; the kickpoint value in volumetric curve will increase with the increment of confining pressures, generally, σo is about 0.6 – 0.9 times of the peak strength value. There are two failure models...
Proceedings Papers

Paper presented at the 3rd ISRM Young Scholars Symposium on Rock Mechanics, November 8–10, 2014
Paper Number: ISRM-YSS-2014-014
... deformation is very sig- nificant; water greatly enhanced the rocks' creep property. Figure 3 indicated that creep deformation of dry specimen presents attenuation creep and 0.4 saturation 'b 0.3 t: ·~ 0.2 "' dry ~ ~ 0.1 0.0 0 4 8 12 16 time I h Figure 2. The creep curves when CJ= 12.3 MPa. 0.65 saturation N...
Proceedings Papers

Paper presented at the ISRM International Symposium - 5th Asian Rock Mechanics Symposium, November 24–26, 2008
Paper Number: ISRM-ARMS5-2008-124
... takes place which is coincident with an increase in mechanical properties of shotcrete lining; therefore, the most critical point may occur before the full strength of shotcrete is reached. Since the conventional CCM does not takes the time-dependent stiffness of shotcrete lining into account...
Proceedings Papers

Paper presented at the SPE Asia Pacific Oil and Gas Conference and Exhibition, October 8–10, 2002
Paper Number: SPE-77950-MS
... inch long cores their application to the hundreds of acres of drainage area is not an easy task. Engineers involved in reservoir simulation know that how hard it is to get a good history match and how many times relative permeability curve has to be tuned to achieve it. Once obtained, does...
Proceedings Papers

Paper presented at the 1994 SEG Annual Meeting, October 23–28, 1994
Paper Number: SEG-1994-0346
... ABSTRACT No preview is available for this paper. optimum value conductivity chargeability optimum loop radius coincident loop frequency parameter negative response em time constant cole-cole parameter magnitude loop radius largest peak time constant electrical property...
Proceedings Papers

Paper presented at the SPE/AAPG/SEG Unconventional Resources Technology Conference, August 1–3, 2016
Paper Number: URTEC-2460462-MS
... geologists for a long time since it was treated as true geological entities by Schaller and Henderson in 1932. In the recent Moscow 21 st World Petroleum Council, the anhydrite related hydrocarbon resource became the hot point for the meeting. Some countries like Angola, Turkey and Norway, even discussed...
Proceedings Papers

Paper presented at the SPE Latin American and Caribbean Petroleum Engineering Conference, July 27–31, 2020
Paper Number: SPE-198974-MS
.... The IPR curve represents the contribution capacity of the reservoir to the well at a given time in its productive life, said capacity decreases over time due to different factors such as the deletion of pressure due to the production of fluids, the reduction of permeability in the vicinity of the well...
Proceedings Papers

Paper presented at the SEG International Exposition and Annual Meeting, September 15–20, 2019
Paper Number: SEG-2019-3215649
... trending of Acoustic Time Difference (AC) of the bedding-developing formation back to the actual position, a correction method is demonstrated according to discrete wavelet transform (DWT), which merges the low-frequency signal of the neutron curve and the high-frequency signal of the sonic curve...
Proceedings Papers

Paper presented at the The 26th International Ocean and Polar Engineering Conference, June 26–July 2, 2016
Paper Number: ISOPE-I-16-193
... dynamic fracture properties of cracked structures subjected to transient impact load. The peak value of the DSIFs curve was found to be about 2.5 times of those under static load with the same load magnitude. Therefore, the static results may overestimate a crack as safe to propagate when it subjected...
Proceedings Papers

Paper presented at the SPE California Regional Meeting, March 25–27, 1981
Paper Number: SPE-9903-MS
... Abstract Strange behavior has been noticed in press r buildup curves for gas wells producing from very low permeability, high drawdown formations. The typical permeability, high drawdown formations. The typical unit slope on a log-log graph of real gas pseudopressure m(p) vs time for wellbore...
Proceedings Papers

Paper presented at the SEG International Exposition and Annual Meeting, September 15–20, 2019
Paper Number: SEG-2019-3216246
... velocity model or time- consuming picking. The STA/LTA traces of the data are stacked along these moveout curves and an event is detected when the stacked trace exceeds a threshold value. For each detected event from the surface data we look for a coinciding detection in the borehole data...
Proceedings Papers

Paper presented at the 2016 SEG International Exposition and Annual Meeting, October 16–21, 2016
Paper Number: SEG-2016-13960017
... the application of a series of field VSP data, we can see that the Q curve of CFS method coincides with geological layers better than those of the others, which are hardly to reflect the main attenuation trend. Presentation Date: Monday, October 17, 2016 Start Time: 4:35:00 PM Location: Lobby D/C Presentation...
Proceedings Papers

Paper presented at the SPE/IATMI Asia Pacific Oil & Gas Conference and Exhibition, October 20–22, 2015
Paper Number: SPE-176101-MS
... time while dual porosity model took six days. Dual porosity model needs longer run time due to complex solver equation to accommodate both matrix and fracture properties. In conclusion, single porosity model gives better match and reasonable run time compared to dual porosity model. It is decided...
Journal Articles
SPE Res Eng 9 (02): 85–91.
Paper Number: SPE-22904-PA
Published: 01 May 1994
... carbide were used. Silicon carbide was the preferred medium for measurement of K o values because it was essentially inert and constant results were obtained on repeated tests. The long time required to precondition and equilibrate live brine and oil with consolidated and disaggregated cores made those...
Journal Articles
J Pet Technol 40 (07): 881–886.
Paper Number: SPE-14659-PA
Published: 01 July 1988
... models of early development wells to coincide with the timing of the pressure meas- urements. Pressure maps were generated for later models to coin- cide with anticipated completion dates of potential infIll wells. These areal pressure maps were used to optimize the placement of intill wells. The effects...
Proceedings Papers

Paper presented at the SPE/DOE Low Permeability Gas Reservoirs Symposium, May 27–29, 1981
Paper Number: SPE-9868-MS
... and to create wider fractures. Various problems were encoun- tered in using these special fluids in deep wells where temperatures exceeded 200°F and where pumping times exceeded one hour. High viscosity cross-linked gels were introduced to the petroleum industry with great expectations. Their rheological...
Proceedings Papers

Paper presented at the 2000 SEG Annual Meeting, August 6–11, 2000
Paper Number: SEG-2000-1576
... and the model trace. This method can hardly solve two problems: (1) the variation of wavelet in time domain. (2) the practical seismic record has something to do with lithology, petrophysical property, and formation sequence In this paper, we develop and present a new technique, Comprehensive Reservoir...
Journal Articles
SPE Drill & Compl 15 (01): 37–43.
Paper Number: SPE-62114-PA
Published: 01 March 2000
.... The proliferation of such regional datums over time has meant that their areas of application frequently overlap. The same set of latitude and longitude coordinates, referenced to different geodetic datums, will refer to different points on the Earth. The coordinates alone, contrary to common belief, do...
Proceedings Papers

Paper presented at the CORROSION 96, March 24–29, 1996
Paper Number: NACE-96063
... A corrosion rate was determined from the weight loss after descalling divided by the immersion time and the specimen surface area. Specimens were mechanically polished with #?320 emery paper. Figure 2 shows a coupled specimen and an uncoupled specimen. A coupled specimen was joined by a bolt and a nut made...
Proceedings Papers

Paper presented at the 1990 SEG Annual Meeting, September 23–27, 1990
Paper Number: SEG-1990-1719
..., which coincides witt the front of the radiated wave at time zero. The wave front S propagates upward in overburden until, at the moment t,/2, it reaches the central point, A, of the array located along a seismic line A,A I position of front S of a fictitious wave is shown ix Fib. lc. An element ^E...

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